<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>
<body>
    <div id="app">
        <input type="text" v-model="message.a">
        <div>{{message.a}}</div>
        <ul><li></li></ul>
        {{message.a}}
    </div>
    <script src="watcher.js"></script>
    <script src="observer.js"></script>
    <script src="compile.js"></script>
    <script src="MVVM.JS"></script>
    <script>
        let vm = new MVVM({
            el:'#app',
            data:{
                message:{
                    a: 'hello zfpx',
                },
                a:1
            }
        })
    </script>
</body>
</html>